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Exploring Join Paths; The Key to Building Multiple-Table Joins
As we see in the SQL 100 and SQL 250 courses, and as we further explore in this article, joins are used in queries that need to access data stored in more than one table (served up either by the table...
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A Primer on Joins
The golden rule of OLTP database design is that every table should represent one, and only one, entity-type. Without this rule, databases can exhibit three data anomalies (insertion, deletion, and...
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Multiple Joins Work just like Single Joins
Before reading this article, you should have a good understanding of single joins between two tables and be clear on the differences between inner and outer joins. Check out my previous post A Primer...
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How to Display Blanks as Zeros in a SSRS Report
Some of the cells in this SSRS matrix report are blank: To display zeros instead, we will use two functions: 1.IsNothing(<Val2Check>) returns a True of Val2Check is Null; otherwise, it returns...
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Using Custom Code in SSRS
While expressions allow you to use limited VB.Net to create advanced dynamic functionality in your SQL Server Reporting Services (SSRS) reports, custom code allows you to leverage much more of the...
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How to Name Worksheets When Exporting SSRS reports to Excel
Let’s say we have the following report that shows total sales by product category by territory: When we export this report to Excel, we’d like each territory to appear in its own worksheet and each...
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Repeating and Freezing Column Headers in SSRS Tables
In this article I’ll show you how to configure a table tablix to both repeat column headers at the top of every page and freeze them while scrolling. While tablixes have properties for these things,...
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A Real-World Example of a Non-Correlated SELECT Subquery and Cross Join
I recently developed a solution to a problem that is a good example of a non-correlated subquery in a SELECT clause that can also be written as a cross join. I’ll describe the requirement, the data,...
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Optional Parameters in SSRS
Let’s say you have a report, like a sales report that shows sales orders, and some people who run that report need it to show only the one sales order that they specify while others need to see all...
View ArticleHow to Display the Elapsed Processing Time of a Report in SSRS
The amount of time it takes to process a report can be useful information for performance auditing. Although there isn’t a built-in field in SQL Server Reporting Services that holds the elapsed...
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